During normal operation, you may find your UPS not functioning as expected. This may be due to a malfunction, configuration issue, or the install environment.
This document will assist you with basic troubleshooting steps.

Resolution:

Problem

Possible Cause

Solution

The UPS will not turn on or there is no output

The UPS is not connected to mains power.

Be sure the power cable is securely connected to the UPS and to the mains power supply.

The UPS display interface screen shows very low or no mains power.

Check the mains power supply to verify acceptable power quality.

There is an internal UPS alert or warning

The UPS Display Interface screen will show a message to identify the alert or warning and corrective action.

UPS emits an audible alarm

Normal UPS operation when running on battery power.

The UPS is operating on battery power. Refer to the status of the UPS as shown on the UPS Display Interface screen. Press any key to mute all alarms

The UPS emits an audible alarm and has a red or amber back light on the UPS Display Interface screen.

An Alarm or Warning condition exists. Refer to the display interface screen for information.

UPS does not provide expected backup time

The UPS battery is weak due to a recent outage or is near the end of its service life.

Charge the batteries. Batteries require recharging after extended outages and wear out faster when put into service often or when operated at elevated temperatures. If the batteries are near the end of service life, consider replacing the batteries even if the Replace Battery message is not displayed.

The UPS is overloaded.

The connected equipment exceeds the specified maximum load. The UPS will emit a sustained audible alarm until the overload condition is corrected. Disconnect nonessential equipment from the UPS to correct the overload condition.

UPS operates on battery power while connected to mains power

The input circuit breaker has tripped.

Reduce the load on the UPS. Disconnect nonessential equipment and reset the circuit breaker. Check the circuit breaker rating for the connected equipment.

There is very high, very low, or distorted input line voltage.

Navigate to the UPS Display Interface screen that shows input voltage. Verify that the input voltage is within specified operating limits.

The connected equipment exceeds the maximum load rating for the UPS. The UPS will emit a sustained audible alarm until the overload condition is corrected. Disconnect nonessential equipment from the UPS to correct the overload condition.

Be sure the battery cables are securely connected. Perform a UPS Self Test to be sure the UPS detects all connected batteries. To perform a UPS Self Test use the UPS Display Interface menu option Test and Diagnostics.

The UPS Display Interface screen shows the message Replace Battery

Allow the battery to recharge for 24 hours. To perform a Runtime test use the UPS Display Interface menu option Test and Diagnostics. If the problem persists, replace all of the batteries.